Flashcards in Cardiovascular Deck (392)
What vessel supplies oxygenated blood to the fetus? What vessel does it join?
Upon reaching fetal circulation, where does most of the oxygenated blood go? Via what structure?
Upon reaching fetal circulation, where does most of the de-oxygenated blood go?
RA --> RV --> patent Ductus arteriosus
Why does blood preferentially flow through the PDA rather than pulmonary vein?
fetal lungs are high pressure
What is a closed foramen ovale called?
What drug is used to keep the PDA open?
What prostaglandins keep the PDA open?
E1 and E2
What does the umbilical vein become?
ligamentum teres hepatis
What does the umbilical artery become?
medial umbilical ligaments
What does the ductus arteriosus become?
What does the ductus venosum become?
What does the allantois become?
urachus/median umbilical ligament
What does the notochord become?
Would coronary blood flow peak during early or late diastole?
Enlargement of the left atria can cause what two mediastinal symptoms?
hoarseness of voice
What is Ficks equation?
CO = O2 consumption/arterial O2 - venous O2
What is the equation for MAP?
(2/3 diastolic)(1/3 systolic)
Would hyperthyroidism increase or decrease pulse pressure?
Would aortic regurgitation increase or decrease pulse pressure?
Would aortic stenosis increase or decrease pulse pressure?
Would obstructive sleep apnea increase or decrease pulse pressure?
Would cardiogenic shock increase or decrease pulse pressure?
Would tamponade increase or decrease pulse pressure?
What would decreased extracellular sodium do to contractility?
What would acidosis do to contractility? By what mechanism?
protons inhibit ca2+ influx
What would hypoxia do to contractiltiy?
What would hypercapnia do to contractiltiy?
What is the equation for LaPlace's Law on wall tension?
What is the Y-axis on Starlings Curve?